| 1 | — | F | Futureproof with Jonathan McCrea | Newstalk | |
| 2 | — |  | Where The Wild Thoughts Are | Jo Marchant | |
| 3 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 3 | I | In Your Nature | By BirdWatch Ireland | |
| 5 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 6 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 7 | 4 |  | Radiolab | WNYC Studios | |
| 8 | 5 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 9 | 6 |  | Unexplainable | Vox | |
| 10 | 10 |  | Curious Cases | BBC Radio 4 | |
| 11 | 12 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 12 | 7 |  | Science Weekly | The Guardian | |
| 13 | 4 |  | COMPLEXITY | Santa Fe Institute | |
| 14 | 168 |  | Re:Energise from ESB | ESB | |
| 15 | 3 |  | More or Less | BBC Radio 4 | |
| 16 | 10 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 17 | 9 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 18 | 94 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 19 | 10 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 20 | 10 |  | BBC Inside Science | BBC Radio 4 | |
| 21 | 7 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 22 | 54 |  | Overheard at National Geographic | National Geographic | |
| 23 | 8 |  | The world, the universe and us | New Scientist | |
| 24 | 62 | B | Boring History for Sleep | Velvet | |
| 25 | 9 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 26 | 73 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 27 | 90 |  | The Climate Question | BBC World Service | |
| 28 | 90 |  | Science In Action | BBC World Service | |
| 29 | 126 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 30 | 127 | W | Why? with Emma Kennedy | Podmasters | |
| 31 | 121 |  | The Life Scientific | BBC Radio 4 | |
| 32 | 119 |  | Universe Today Podcast | Fraser Cain | |
| 33 | 115 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 34 | 141 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 35 | — | B | BJA Education Podcasts | BJA Education | |
| 36 | — |  | Misguided: The Podcast | Matthew Facciani | |
| 37 | — | U | Under the Cortex | psychologicalscience | |
| 38 | — | S | Science Quickly | Scientific American | |
| 39 | — | U | Unblinded: A Clinical Trial Podcast | Veeva Systems | |
| 40 | 12 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 41 | 10 | T | The Knepp Wilding Podcast | Knepp.co.uk | |
| 42 | 23 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 43 | 25 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 44 | 23 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 45 | 15 |  | Discovery | BBC World Service | |
| 46 | 24 | T | The Meaning of Trees Podcast | Tom Hill | |
| 47 | 99 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 48 | 84 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 49 | 22 |  | Почему мы еще живы | libo/libo | |
| 50 | 26 |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 51 | 22 |  | This Week in Virology | Vincent Racaniello | |
| 52 | 27 |  | This Week in Cardiology | Medscape | |
| 53 | 20 |  | Naturebang | BBC Radio 4 | |
| 54 | 127 | N | Naturefile | RTÉ lyric fm | |
| 55 | 23 |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 56 | 17 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 57 | — |  | New Books in Critical Theory | Marshall Poe | |
| 58 | — |  | Human Origins - The Story of Us | World of Paleoanthropology | |
| 59 | 28 |  | American Innovations | Audible | |
| 60 | — |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 61 | 27 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 62 | — |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 63 | 28 | N | National Geographic Magazine | Radio Eye | |
| 64 | 28 |  | Jefillysh: Ciencia Simplificada | Carolina Jefillysh | |
| 65 | — | P | Personality Psychology Podcast | personalitypsychologypodcast | |
| 66 | — |  | This Week in Neuroscience | Vincent Racaniello | |
| 67 | — |  | The Peter Byck Show | Peter Byck | |
| 68 | — |  | ESA Explores | European Space Agency | |
| 69 | 32 | B | Behavior Bitches | Study Notes ABA, LLC | |
| 70 | 32 | S | Science Writing and Journalism | Yale University | |
| 71 | — | C | CEF's Podcast: 'Inside Events' | Centre for Events & Festivals | |
| 72 | — |  | Pharm to Table | LC Campeau, Dani Schultz | |
| 73 | 45 | C | CountryWide | RTÉ Radio 1 | |
| 74 | 34 |  | Why Do We Do That? | BBC Radio 4 | |
| 75 | 34 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 76 | 31 |  | Cool Worlds Podcast | coolworldslab | |
| 77 | 34 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 78 | 34 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 79 | 37 |  | Babbage from The Economist | The Economist | |
| 80 | 34 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 81 | 34 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 82 | 33 |  | Origin Stories | The Leakey Foundation | |
| 83 | 33 |  | The Common Descent Podcast | Common Descent | |
| 84 | 36 | D | DermConsult | ReachMD | |
| 85 | 28 |  | How We're Wired | The Bertarelli Foundation | |
| 86 | 32 |  | Are We There Yet? | Central Florida Public Media | |
| 87 | 34 | S | SOLD OUT: Rethinking Housing in America | KQED | |
| 88 | 27 |  | The Long Run with Luke Timmerman | Timmerman Report | |
| 89 | 27 |  | New Books in Psychoanalysis | Marshall Poe | |
| 90 | 35 | C | Conversations in Drug Development | Boyds | |
| 91 | 35 | O | OVERSHOOT | Shrink Toward Abundance | Population Balance | |
| 92 | 33 | N | Nullius in Verba | Smriti Mehta and Daniël Lakens | |
| 93 | 35 |  | The Orthogonal Bet | Lux Capital | |
| 94 | 34 | S | Space | BBC World Service | |
| 95 | 22 | S | Seacreatures | Matt Testoni | |
| 96 | 29 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 97 | 34 | D | Deep Papers | Arize AI | |
| 98 | 34 |  | Chemistry Made Simple | Matthew Macariou | |
| 99 | 34 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 100 | 34 |  | Raising Health | Andreessen Horowitz, a16z Bio + Health | |
